Guidelines for Designing and Evaluating Surface Irrigation SystemsFood and Agriculture Organization of the United Nations, 1989 - Technology & Engineering - 137 pages |
Common terms and phrases
advance and recession advance phase application efficiency basin irrigation borders and basins calculations coefficient Compute configuration crop cross-sectional cumulative infiltration cutback design cutback system cutoff cutthroat flume cylinder infiltrometers depletion design procedure determined Dimensionless advance trajectories discharge downstream dyked elevation Equation estimate evapotranspiration example farm field capacity field inlet field length field slope flow geometry flow measuring furrow inflow furrow irrigation furrow systems furrows and borders grid point head ditch hydraulic hydrograph infiltration exponent infiltration function infiltration rate land levelling later irrigations m³/min m³/min/m method metres minutes N₁ neutron probe number of furrows number of sets operation P₁ parameters percent permanent wilting point pond profilometer Qmax required intake opportunity reservoir root zone shown in Figure soil moisture spiles surface irrigation systems surface runoff t₁ T₂ tailwater Treq typical uniformity unit width Walker and Skogerboe water supply weir wetted perimeter wetting Zreq
References to this book
El riego II. Fundamentos de su hidrología y de su práctica LOSADA VILLASANTE, ALBERTO No preview available - 2005 |